Thursday, August 31, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 312059 CCA
HWOLOT

Hazardous Weather Outlook...CORRECTED
National Weather Service Chicago/Romeoville IL
359 PM CDT Thu Aug 31 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
359 PM CDT Thu Aug 31 2023 /459 PM EDT Thu Aug 31 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Saturday and Sunday...
Limited to Elevated Fire Weather Risk for brush and grass fires.
Monday and Tuesday...
Limited Excessive Heat Risk during the late morning and afternoon.
Tuesday Night and Wednesday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/f6l5v
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 312034
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
334 PM CDT Thu Aug 31 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
334 PM CDT Thu Aug 31 2023 /434 PM EDT Thu Aug 31 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Sunday through Tuesday...
Limited Excessive Heat Risk during the late morning and afternoon.
Tuesday Night and Wednesday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/492ia
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 310804
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
304 AM CDT Thu Aug 31 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
304 AM CDT Thu Aug 31 2023 /404 AM EDT Thu Aug 31 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches this morning.

DISCUSSION...

High waves and strong currents will continue to cause dangerous
swimming conditions at southern Lake Michigan beaches this morning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Monday and Tuesday...
Limited Excessive Heat Risk.
Wednesday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/owmea
Posted by at

Wednesday, August 30, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 302035
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
335 PM CDT Wed Aug 30 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
335 PM CDT Wed Aug 30 2023 /435 PM EDT Wed Aug 30 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

High waves and strong currents will continue to cause dangerous
swimming conditions at southern Lake Michigan beaches through late
tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Monday and Tuesday...
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/3wm0o
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 301529
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1029 AM CDT Wed Aug 30 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1029 AM CDT Wed Aug 30 2023 /1129 AM EDT Wed Aug 30 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

High waves and rip currents will create hazardous swimming
conditions at southern Lake Michigan beaches through tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Sunday through Tuesday...
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/mhdo6
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 300801
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
301 AM CDT Wed Aug 30 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
301 AM CDT Wed Aug 30 2023 /401 AM EDT Wed Aug 30 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

High waves and rip currents will create hazardous swimming
conditions at southern Lake Michigan beaches through tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Sunday through Tuesday...
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/qcmwl
Posted by at

Tuesday, August 29, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 292036
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
336 PM CDT Tue Aug 29 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
336 PM CDT Tue Aug 29 2023 /436 PM EDT Tue Aug 29 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.
Limited Thunderstorm Risk through early evening.

DISCUSSION...

Widely scattered showers and thunderstorms are expected this
through early evening.

Swimming conditions at Lake Michigan beaches will quickly
deteriorate early this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
High Swim Risk Lake Michigan beaches.
Sunday and Monday...
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at 25 mph.


https://wxn.io/d4i6l
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 291719
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1219 PM CDT Tue Aug 29 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1219 PM CDT Tue Aug 29 2023 /119 PM EDT Tue Aug 29 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.
High Swim Risk Lake Michigan beaches.

DISCUSSION...

Widely scattered showers and thunderstorms are expected this
afternoon, especially across northeast Illinois and northwest
Indiana.

Swim conditions will quickly deteriorate mid to late this
afternoon at Lake Michigan beaches with very hazardous swim
conditions continuing tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
High Swim Risk Lake Michigan beaches.
Sunday and Monday...
Limited Excessive Heat Risk.


.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at 30 mph.


https://wxn.io/bdmqf
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 290907
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
407 AM CDT Tue Aug 29 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
407 AM CDT Tue Aug 29 2023 /507 AM EDT Tue Aug 29 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.
High Swim Risk Lake Michigan beaches.

DISCUSSION...

Scattered thunderstorms are expected this afternoon, especially
across northeast Illinois and northwest Indiana.

Swim conditions will quickly deteriorate mid to late this
afternoon at Lake Michigan beaches with very hazardous swim
conditions continuing tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
High Swim Risk Lake Michigan beaches.
Sunday and Monday...
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at 30 mph.


https://wxn.io/5axbg
Posted by at

Monday, August 28, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 281948
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
248 PM CDT Mon Aug 28 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
248 PM CDT Mon Aug 28 2023 /348 PM EDT Mon Aug 28 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Limited Thunderstorm Risk.
High Swim Risk Lake Michigan beaches.
Wednesday and Wednesday night...
High Swim Risk Lake Michigan beaches.
Sunday...
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/8qpth
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 280908
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
408 AM CDT Mon Aug 28 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
408 AM CDT Mon Aug 28 2023 /508 AM EDT Mon Aug 28 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Limited Thunderstorm Risk.
Tuesday night and Wednesday...
High Swim Risk Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/xsfop
Posted by at

Sunday, August 27, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 271938
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
238 PM CDT Sun Aug 27 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
238 PM CDT Sun Aug 27 2023 /338 PM EDT Sun Aug 27 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

Dangerous currents may continue at Lake Michigan beaches through
this evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Tuesday...
Limited Thunderstorm Risk.


.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/6y2wr
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 271648
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1148 AM CDT Sun Aug 27 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1148 AM CDT Sun Aug 27 2023 /1248 PM EDT Sun Aug 27 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

High waves and dangerous currents will continue through this
afternoon at Lake Michigan beaches.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/xwkde
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 270858
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
358 AM CDT Sun Aug 27 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
358 AM CDT Sun Aug 27 2023 /458 AM EDT Sun Aug 27 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

High waves and dangerous rip currents will continue into this
afternoon at Lake Michigan beaches.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/9dqjp
Posted by at

Saturday, August 26, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 261927
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
227 PM CDT Sat Aug 26 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
227 PM CDT Sat Aug 26 2023 /327 PM EDT Sat Aug 26 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

High waves and dangerous rip currents will continue through Sunday
morning along Lake Michigan beaches.


.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/pi7pk
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 261404
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
904 AM CDT Sat Aug 26 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
904 AM CDT Sat Aug 26 2023 /1004 AM EDT Sat Aug 26 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

Breezy northeasterly winds today will result in high waves and
dangerous currents at Lake Michigan beaches.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
High Swim Risk Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/pzq02
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 260937
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
437 AM CDT Sat Aug 26 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
437 AM CDT Sat Aug 26 2023 /537 AM EDT Sat Aug 26 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches.

DISCUSSION...

Breezy northeasterly winds today will result in high waves and
dangerous currents at Lake Michigan beaches.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday Morning...
High Swim Risk Lake Michigan beaches in Illinois.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/txw29
Posted by at

Friday, August 25, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 260209
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
909 PM CDT Fri Aug 25 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
909 PM CDT Fri Aug 25 2023 /1009 PM EDT Fri Aug 25 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk mainly well south of I-80.

DISCUSSION...

Scattered thunderstorms are possible well south of I-80, and
especially south of U.S. highway 24. The primary threat from any
thunderstorms will be heavy downpours and cloud to ground
lightning, though isolated damaging winds cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
High Swim Risk Lake Michigan beaches.
Tuesday...
Limited Thunderstorm Risk.
High Swim Risk Lake Michigan beaches.
Wednesday...
High Swim Risk Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 30 mph.


https://wxn.io/7ie8j
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 251948
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
248 PM CDT Fri Aug 25 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
248 PM CDT Fri Aug 25 2023 /348 PM EDT Fri Aug 25 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk south of Interstate 80.
Limited Excessive Heat Risk south of Interstate 80.

DISCUSSION...

Scattered thunderstorms are possible south of I-80. The primary threat from
any thunderstorms will be heavy downpours and cloud to ground
lightning, though isolated damaging winds cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
High Swim Risk Lake Michigan beaches.
Tuesday...
Limited Thunderstorm Risk.
High Swim Risk Lake Michigan beaches.
Wednesday...
High Swim Risk Lake Michigan beaches.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 30 mph.


https://wxn.io/c6lo9
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 251652
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1152 AM CDT Fri Aug 25 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1152 AM CDT Fri Aug 25 2023 /1252 PM EDT Fri Aug 25 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.
Elevated Excessive Heat Risk.

DISCUSSION...

Scattered thunderstorms are possible late this afternoon and
especially this evening south of I-80. The primary threat from
any thunderstorms will be heavy downpours and cloud to ground
lightning. There is a small chance that one or two of the storms
could become strong to severe south of the Illinois and Kankakee
Rivers in Illinois, posing a threat of locally strong winds and
some hail.

In addition, heat indices this afternoon could peak around 100
degrees, generally around and south of a line from Sterling IL to
Fowler IN.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
High Swim Risk Lake Michigan beaches.
Tuesday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters activation is unlikely through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast around 30 mph.


https://wxn.io/2q5p2
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 250918
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
418 AM CDT Fri Aug 25 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
418 AM CDT Fri Aug 25 2023 /518 AM EDT Fri Aug 25 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

High Swim Risk Lake Michigan beaches early this morning.
Elevated Thunderstorm Risk.
Elevated Excessive Heat Risk.

DISCUSSION...

Scattered thunderstorms are possible this afternoon into this
evening, especially south of I-80. While the primary threat from
any storms will be heavy downpours and cloud to ground lightning,
there is a small chance that one or two of the storms could
become strong to severe, posing a threat of locally strong winds
and some hail.

In addition, heat indices this afternoon could peak around 100
degrees, generally around and south of a line from Sterling IL to
Fowler IN.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Saturday...
High Swim Risk Lake Michigan beaches.
Monday and Tuesday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast around 30 mph.


https://wxn.io/qwk97
Posted by at

Thursday, August 24, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 250408 AAA
HWOLOT

Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
1108 PM CDT Thu Aug 24 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1108 PM CDT Thu Aug 24 2023 /1208 AM EDT Fri Aug 25 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Elevated Excessive Heat Risk well south of I-80.
Saturday...
High Swim Risk Lake Michigan Shore

.SPOTTER INFORMATION STATEMENT...

Spotters will not be needed tonight.


https://wxn.io/yqmd5
Posted by at

Severe Thunderstorm Watch Cancellation for McHenry Co., IL

WWUS63 KLOT 250145
WCNLOT

WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
845 PM CDT THU AUG 24 2023


/O.CAN.KLOT.SV.A.0655.000000T0000Z-230825T0300Z/

THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 655 FOR THE FOLLOWING AREAS

IN ILLINOIS THIS CANCELS 3 COUNTIES

IN NORTH CENTRAL ILLINOIS

BOONE

IN NORTHEAST ILLINOIS

LAKE IL MCHENRY

THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN,
AND WOODSTOCK.


https://wxn.io/fpp35
Posted by at

Special Weather Statement for McHenry Co., IL

WWUS83 KLOT 250108
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville
808 PM CDT Thu Aug 24 2023


McHenry IL-
808 PM CDT Thu Aug 24 2023

...A strong thunderstorm will impact portions of northwestern McHenry
County through 845 PM CDT...

At 808 PM CDT, Doppler radar was tracking a strong thunderstorm over
Walworth, or near Williams Bay, moving southeast at 30 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.

Locations impacted include...
Harvard, Genoa City, Richmond and Hebron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
north central and northeastern Illinois.

&&

LAT...LON 4248 8829 4241 8847 4239 8864 4249 8871
4250 8832
TIME...MOT...LOC 0108Z 321DEG 24KT 4254 8860

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH


https://wxn.io/0wdwz
Posted by at

Excessive Heat Warning Expiration for McHenry Co., IL

WWUS73 KLOT 250058
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
758 PM CDT Thu Aug 24 2023


/O.EXP.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
758 PM CDT Thu Aug 24 2023

...EXCESSIVE HEAT WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING...

Heat indices continue to slowly fall. While values may remain
above 100 degrees for the next few hours, conditions will continue
to slowly improve. Accordingly, the Excessive Heat Warning will be
allowed to expire.


https://wxn.io/hiesk
Posted by at

Severe Thunderstorm Watch for McHenry Co., IL until 10:00 PM CDT 8/24

WWUS63 KLOT 242206
WCNLOT

WATCH COUNTY NOTIFICATION FOR WATCH 655
NATIONAL WEATHER SERVICE CHICAGO IL
506 PM CDT THU AUG 24 2023


/O.NEW.KLOT.SV.A.0655.230824T2206Z-230825T0300Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
655 IN EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING
AREAS

IN ILLINOIS THIS WATCH INCLUDES 3 COUNTIES

IN NORTH CENTRAL ILLINOIS

BOONE

IN NORTHEAST ILLINOIS

LAKE IL MCHENRY

THIS INCLUDES THE CITIES OF ALGONQUIN, BELVIDERE, BUFFALO GROVE,
CRYSTAL LAKE, GURNEE, MCHENRY, MUNDELEIN, WAUKEGAN,
AND WOODSTOCK.


https://wxn.io/nmedn
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 242020
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
320 PM CDT Thu Aug 24 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
320 PM CDT Thu Aug 24 2023 /420 PM EDT Thu Aug 24 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Limited Damaging Wind Risk...up to 70 mph.
Limited Hail Risk...up to quarter size.
Extreme Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue
through this evening with peak afternoon heat indices above 110
degrees.

Isolated to scattered thunderstorms may develop this afternoon in
southern Wisconsin, and move into northeastern Illinois this
evening. Any storm may be severe with damaging winds and hail, as
well as heavy, soaking downpours.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Elevated Excessive Heat Risk well south of I-80.
Saturday...
High Swim Risk Lake Michigan Shore

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at 30 mph.


https://wxn.io/cnnfa
Posted by at

Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 242015
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
315 PM CDT Thu Aug 24 2023


/O.CON.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
315 PM CDT Thu Aug 24 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...Dangerously hot conditions with heat index values in
excess of 110 expected.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT this evening.

* IMPACTS...Extreme heat and humidity will significantly increase
the potential for heat related illnesses, particularly for those
working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/80alz
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 241635
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1135 AM CDT Thu Aug 24 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1135 AM CDT Thu Aug 24 2023 /1235 PM EDT Thu Aug 24 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Limited Damaging Wind Risk...up to 70 mph.
Limited Hail Risk...up to quarter size
Extreme Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue today
with peak afternoon heat indices above 110 degrees.

A few strong to severe thunderstorms are possible late this
afternoon and evening, primarily north of Interstate 80. Damaging
wind gusts will be the main threat with any storms.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Limited Thunderstorm Risk at night.
Limited Excessive Heat Risk south of Interstate 80.
Saturday and Sunday...
High Swim Risk Lake Michigan Shore

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at 30 mph.


https://wxn.io/jpk7e
Posted by at

Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 241500
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1000 AM CDT Thu Aug 24 2023


/O.CON.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
1000 AM CDT Thu Aug 24 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...Dangerously hot conditions with heat index values in
excess of 110 expected.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT this evening.

* IMPACTS...Extreme heat and humidity will significantly increase
the potential for heat related illnesses, particularly for those
working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/s7fdr
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 240844
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
344 AM CDT Thu Aug 24 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
344 AM CDT Thu Aug 24 2023 /444 AM EDT Thu Aug 24 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Limited Damaging Wind Risk...up to 70 mph.
Limited Hail Risk...up to quarter size.
Significant to Extreme Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue today
with peak afternoon heat indices of 110 to 117 degrees.

A few strong to severe thunderstorms are possible late this
afternoon and evening, primarily north of I-80. Damaging wind
gusts will be the main threat with any storms.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Limited Thunderstorm Risk at night
Limited Excessive Heat Risk south of I-80.
Saturday and Sunday morning...
High Swim Risk Lake Michigan Shore

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed late this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at 30 mph.


https://wxn.io/i4rh0
Posted by at

Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 240825
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
325 AM CDT Thu Aug 24 2023


/O.CON.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
325 AM CDT Thu Aug 24 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

* WHAT...Dangerously hot conditions with heat index values of 110
to 117 expected.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT this evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/x9ehj
Posted by at

Wednesday, August 23, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 240147 AAA
HWOLOT

Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
847 PM CDT Wed Aug 23 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
847 PM CDT Wed Aug 23 2023 /947 PM EDT Wed Aug 23 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue, with
heat indices only slowly easing from mid-evening values of 95 to
110 degrees.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Significant to Extreme Excessive Heat Risk.
Limited Severe Thunderstorm Risk in the late day and evening.
Friday...
Limited Thunderstorm Risk at night.
Limited Excessive Heat Risk.
Saturday...
High Swim Risk Lake Michigan Shore.


DISCUSSION...

Oppressive and dangerous heat and humidity will continue on
Thursday with peak afternoon heat indices of 105 to 116 degrees.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/j9nld
Posted by at

Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 240141
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
841 PM CDT Wed Aug 23 2023


/O.CON.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
841 PM CDT Wed Aug 23 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT
THURSDAY...

* WHAT...Dangerously hot conditions with maximum heat index
values of 108 to 116 expected on Thursday.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT Thursday.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/ovswt
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 232042
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
342 PM CDT Wed Aug 23 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
342 PM CDT Wed Aug 23 2023 /442 PM EDT Wed Aug 23 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Extreme Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue, with
peak heat indices of 110 to 120 degrees until early evening.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Significant to Extreme Excessive Heat Risk.
Limited Severe Thunderstorm Risk in the late day and evening.
Friday...
Limited Thunderstorm Risk at night.
Limited Excessive Heat Risk.
Saturday...
High Swim Risk Lake Michigan Shore.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue on
Thursday with peak afternoon heat indices of 105 to 116 degrees.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/y3vgh
Posted by at

Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 232032
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
332 PM CDT Wed Aug 23 2023


/O.CON.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
332 PM CDT Wed Aug 23 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT
THURSDAY...

* WHAT...Dangerously hot conditions with heat index values of 112
to 120 occurring this afternoon, with maximum heat indices of
108 to 116 expected on Thursday.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT Thursday.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/8afvz
Posted by at

Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 231620
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1120 AM CDT Wed Aug 23 2023


/O.CON.KLOT.EH.W.0002.000000T0000Z-230825T0100Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove,
Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, DeKalb,
Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove,
Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota,
Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka,
Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury,
Watseka, Gilman, Paxton, Gibson City, Joliet, Bolingbrook,
Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete,
Peotone, and Beecher
1120 AM CDT Wed Aug 23 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT
THURSDAY...

* WHAT...Dangerously hot conditions with heat index values of
112 to 118 expected.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT Thursday.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/yipe0
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 231603
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1103 AM CDT Wed Aug 23 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1103 AM CDT Wed Aug 23 2023 /1203 PM EDT Wed Aug 23 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Extreme Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will occur today, with
peak afternoon heat indices around 112 to 118.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk at night.
Limited Excessive Heat Risk.
Saturday and Sunday...
High Swim Risk Lake Michigan Shore.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue on
Thursday with peak afternoon heat indices of 105 to 115.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/cp2xy
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 230817
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
317 AM CDT Wed Aug 23 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
317 AM CDT Wed Aug 23 2023 /417 AM EDT Wed Aug 23 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Oppressive and dangerous heat and humidity will occur today, with
peak afternoon heat indices around 110 to 115.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk at night.
Limited Excessive Heat Risk.
Saturday and Sunday...
High Swim Risk Lake Michigan Shore.

DISCUSSION...

Oppressive and dangerous heat and humidity will continue on
Thursday with peak afternoon heat indices of 105 to 115.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/go06y
Posted by at

Excessive Heat Watch Cancellation for McHenry Co., IL, Excessive Heat Warning for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 230805
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
305 AM CDT Wed Aug 23 2023


/O.CAN.KLOT.EH.A.0001.230824T0200Z-230825T0100Z/
/O.EXT.KLOT.EH.W.0002.230823T1600Z-230825T0100Z/
McHenry-Lake IL-DuPage-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, and Carol Stream
305 AM CDT Wed Aug 23 2023

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 11 AM THIS MORNING
TO 8 PM CDT THURSDAY...

* WHAT...Dangerously hot conditions with heat index values of 110
to 115 expected.

* WHERE...McHenry, Lake IL and DuPage Counties.

* WHEN...From 11 AM this morning to 8 PM CDT Thursday.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/fc401
Posted by at

Tuesday, August 22, 2023

Excessive Heat Warning for McHenry Co., IL until 9:00 PM CDT 8/23, Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 230216
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
916 PM CDT Tue Aug 22 2023


/O.CON.KLOT.EH.W.0002.230823T1600Z-230824T0200Z/
/O.CON.KLOT.EH.A.0001.230824T0200Z-230825T0100Z/
McHenry-Lake IL-DuPage-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, and Carol Stream
916 PM CDT Tue Aug 22 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM
CDT WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY EVENING...

* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with heat index values of 110 to 115 expected with
locally higher values possible. For the Excessive Heat Watch,
dangerously hot conditions with heat index values of 110 to
115 possible.

* WHERE...McHenry, Lake IL and DuPage Counties.

* WHEN...For the Excessive Heat Warning, from 11 AM to 9 PM CDT
Wednesday. For the Excessive Heat Watch, from late Wednesday
evening through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/a8ij9
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 230210
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
910 PM CDT Tue Aug 22 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
910 PM CDT Tue Aug 22 2023 /1010 PM EDT Tue Aug 22 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
Significant Excessive Heat Risk.
Thursday...
Limited Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Saturday...
High Swim Risk Lake Michigan Shore

DISCUSSION...

Oppressive and dangerous heat and humidity are expected Wednesday
and Thursday with peak afternoon heat indices of 105 to 115. The
worst of the heat is expected areawide on Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/oxpko
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 222011
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
311 PM CDT Tue Aug 22 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
311 PM CDT Tue Aug 22 2023 /411 PM EDT Tue Aug 22 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Excessive Heat Risk.

DISCUSSION...

Warm and muggy conditions are expected, mainly west of a Rockford
to Paxton line into early this evening.


.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
Significant Excessive Heat Risk.
Thursday...
Significant Excessive Heat Risk.
Limited Severe Thunderstorm Risk Late.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk well south of I-80.
Saturday...
High Swim Risk Lake Michigan Shore.

DISCUSSION...

Oppressive and dangerous heat and humidity are expected Wednesday
and Thursday with peak afternoon heat indices of 105 to 115. The
worst of the heat is expected areawide on Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/mkern
Posted by at

Excessive Heat Warning for McHenry Co., IL until 9:00 PM CDT 8/23, Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 221917
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
217 PM CDT Tue Aug 22 2023



/O.CON.KLOT.EH.W.0002.230823T1600Z-230824T0200Z/
/O.CON.KLOT.EH.A.0001.230824T0200Z-230825T0100Z/
McHenry-Lake IL-DuPage-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, and Carol Stream
217 PM CDT Tue Aug 22 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM
CDT WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY EVENING...

* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with heat index values of 110 to 115 expected with
locally higher values possible. For the Excessive Heat Watch,
dangerously hot conditions with heat index values of 110 to
115 possible.

* WHERE...McHenry, Lake IL and DuPage Counties.

* WHEN...For the Excessive Heat Warning, from 11 AM to 9 PM CDT
Wednesday. For the Excessive Heat Watch, from Wednesday
evening through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/nndfb
Posted by at

Excessive Heat Warning for McHenry Co., IL until 9:00 PM CDT 8/23, Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 221455
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
955 AM CDT Tue Aug 22 2023



/O.CON.KLOT.EH.W.0002.230823T1600Z-230824T0200Z/
/O.CON.KLOT.EH.A.0001.230824T0200Z-230825T0100Z/
Boone-McHenry-Lake IL-De Kalb-Kane-DuPage-Kendall-Grundy-Kankakee-
Iroquois-Northern Will-Southern Will-Eastern Will-
Including the cities of Belvidere, Crystal Lake, Algonquin,
McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton,
Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano,
Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley,
Watseka, Gilman, Joliet, Bolingbrook, Plainfield, Mokena,
Channahon, Manhattan, Wilmington, Crete, Peotone, and Beecher
955 AM CDT Tue Aug 22 2023

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM
CDT WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY EVENING...

* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with heat index values of 110 to 115 expected with
locally higher values possible. For the Excessive Heat Watch,
dangerously hot conditions with heat index values of 110 to
115 possible.

* WHERE...Boone, De Kalb, Kane, Kendall, Grundy, Kankakee,
Iroquois, Northern Will, Southern Will and Eastern Will
Counties.

* WHEN...For the Excessive Heat Warning, from 11 AM to 9 PM CDT
Wednesday. For the Excessive Heat Watch, from Wednesday
evening through early Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&


https://wxn.io/fik2m
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 220833
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
333 AM CDT Tue Aug 22 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
333 AM CDT Tue Aug 22 2023 /433 AM EDT Tue Aug 22 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited to Elevated Excessive Heat Risk

DISCUSSION...

Warm and muggy conditions are expected, mainly west of a Rockford
to Paxton line this afternoon.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
Significant Excessive Heat Risk.
Thursday...
Limited Severe Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday...
Limited Excessive Heat Risk well south of I-80.
Saturday...
High Swim Risk Lake Michigan Shore.

DISCUSSION...

Oppressive and dangerous heat and humidity are expected Wednesday
and Thursday with peak afternoon heat indices of 105 to 115. The
worst of the heat is expected areawide on Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/arjfq
Posted by at

Excessive Heat Warning for McHenry Co., IL until 9:00 PM CDT 8/23, Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 220759
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
259 AM CDT Tue Aug 22 2023



/O.NEW.KLOT.EH.W.0002.230823T1600Z-230824T0200Z/
/O.EXT.KLOT.EH.A.0001.230824T0200Z-230825T0100Z/
McHenry-Lake IL-DuPage-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, and Carol Stream
259 AM CDT Tue Aug 22 2023

...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 9 PM CDT
WEDNESDAY...
...EXCESSIVE HEAT WATCH NOW IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY EVENING...

* WHAT...For the Excessive Heat Warning, dangerously hot
conditions with heat index values of 110 to 115 expected with
locally higher values possible. For the Excessive Heat Watch,
dangerously hot conditions with heat index values around 110
possible.

* WHERE...McHenry, Lake IL and DuPage Counties.

* WHEN...For the Excessive Heat Warning, from 11 AM to 9 PM CDT
Wednesday. For the Excessive Heat Watch, from Wednesday
evening through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&


https://wxn.io/2s40m
Posted by at

Monday, August 21, 2023

Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 220305
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1005 PM CDT Mon Aug 21 2023



/O.CON.KLOT.EH.A.0001.230823T1600Z-230825T0100Z/
McHenry-Lake IL-DuPage-Northern Cook-Central Cook-Southern Cook-
Lake IN-Porter-Jasper-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Gary, Hammond, Merrillville,
Portage, Valparaiso, Chesterton, Rensselaer, and DeMotte
1005 PM CDT Mon Aug 21 2023

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY EVENING...

* WHAT...Dangerously hot and humid conditions with heat index
values 110 to 115 degrees possible.

* WHERE...In Illinois, McHenry, Lake IL, DuPage, Northern Cook,
Central Cook and Southern Cook Counties. In Indiana, Lake IN,
Porter and Jasper Counties.

* WHEN...From Wednesday morning through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&


https://wxn.io/usbtd
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 212014
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
314 PM CDT Mon Aug 21 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
314 PM CDT Mon Aug 21 2023 /414 PM EDT Mon Aug 21 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Elevated Excessive Heat Risk.
Wednesday and Thursday...
Significant Excessive Heat Risk.
Saturday...
High Swim Risk Lake Michigan Shore

DISCUSSION...

Oppressive and dangerous heat and humidity are expected to return
Tuesday through Thursday. Peak afternoon heat indices up to 100 to
105 are expected Tuesday afternoon, mainly west of a Rockford to
Paxton line. The worst heat is expected areawide Wednesday and
Thursday with peak afternoon heat indices of 105 to 115 degrees
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/y6sod
Posted by at

Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 211944
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
244 PM CDT Mon Aug 21 2023



/O.CON.KLOT.EH.A.0001.230823T1600Z-230825T0100Z/
McHenry-Lake IL-DuPage-Northern Cook-Central Cook-Southern Cook-
Lake IN-Porter-Jasper-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Gary, Hammond, Merrillville,
Portage, Valparaiso, Chesterton, Rensselaer, and DeMotte
244 PM CDT Mon Aug 21 2023

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY EVENING...

* WHAT...Dangerously hot and humid conditions with heat index
values 110 to 115 degrees possible.

* WHERE...In Illinois, McHenry, Lake IL, DuPage, Northern Cook,
Central Cook and Southern Cook Counties. In Indiana, Lake IN,
Porter and Jasper Counties.

* WHEN...From Wednesday morning through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&


https://wxn.io/zxm3f
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 211628
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1128 AM CDT Mon Aug 21 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1128 AM CDT Mon Aug 21 2023 /1228 PM EDT Mon Aug 21 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Excessive Heat Risk well south of I-80.

DISCUSSION...

Peak heat indices in the upper 90s to near 100 degrees are
possible well south of I-80 this afternoon.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Elevated Excessive Heat Risk.
Wednesday and Thursday...
Significant Excessive Heat Risk.
Friday...
Limited Excessive Heat Risk.
Friday Night through Sunday....
High Swim Risk Lake Michigan Shore

DISCUSSION...

Oppressive and dangerous heat and humidity are expected to return

Tuesday through Thursday. Peak afternoon heat indices up to 105
are expected Tuesday afternoon, mainly west of a Rockford to
Rensselaer IN line. Intense, dangerous heat is expected areawide
Wednesday and Thursday with peak afternoon heat indices of 105 to
115 degrees possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/jg6a9
Posted by at

Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 211535
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1035 AM CDT Mon Aug 21 2023



/O.CON.KLOT.EH.A.0001.230823T1600Z-230825T0100Z/
McHenry-Lake IL-DuPage-Northern Cook-Central Cook-Southern Cook-
Lake IN-Porter-Jasper-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Gary, Hammond, Merrillville,
Portage, Valparaiso, Chesterton, Rensselaer, and DeMotte
1035 AM CDT Mon Aug 21 2023

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY EVENING...

* WHAT...Dangerously hot and humid conditions with heat index
values up to around 110 possible.

* WHERE...In Illinois, McHenry, Lake IL, DuPage, Northern Cook,
Central Cook and Southern Cook Counties. In Indiana, Lake IN,
Porter and Jasper Counties.

* WHEN...From Wednesday morning through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly increase
the potential for heat related illnesses, particularly for those
working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&


https://wxn.io/xtu3f
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 210844
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
344 AM CDT Mon Aug 21 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
344 AM CDT Mon Aug 21 2023 /444 AM EDT Mon Aug 21 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Excessive Heat Risk well south of I-80.

DISCUSSION...

Peak heat indices in the upper 90s to near 100 degrees are
possible well south of I-80 this afternoon.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Elevated Excessive Heat Risk.
Wednesday and Thursday...
Significant Excessive Heat Risk.
Friday...
Limited Excessive Heat Risk.
Friday Night through Sunday....
High Swim Risk Lake Michigan Shore

DISCUSSION...

Oppressive and dangerous heat and humidity are expected to return
Tuesday through Thursday. Peak afternoon heat indices up to 105
are expected Tuesday afternoon, mainly west of a Rockford to
Rensselaer IN line. Intense, dangerous heat is expected areawide
Wednesday and Thursday with peak afternoon heat indices of 105 to
115 degrees possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/x0tfa
Posted by at

Excessive Heat Watch for McHenry Co., IL until 8:00 PM CDT 8/24

WWUS73 KLOT 210747
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
247 AM CDT Mon Aug 21 2023



/O.NEW.KLOT.EH.A.0001.230823T1600Z-230825T0100Z/
McHenry-Lake IL-DuPage-Northern Cook-Central Cook-Southern Cook-
Lake IN-Porter-Jasper-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee,
Naperville, Wheaton, Downers Grove, Lombard, Carol Stream,
Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago,
Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest,
Lemont, Orland Park, Park Forest, Gary, Hammond, Merrillville,
Portage, Valparaiso, Chesterton, Rensselaer, and DeMotte
247 AM CDT Mon Aug 21 2023

...EXCESSIVE HEAT WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
THURSDAY EVENING...

* WHAT...Dangerously hot and humid conditions with heat index
values up to around 110 possible.

* WHERE...In Illinois, McHenry, Lake IL, DuPage, Northern Cook,
Central Cook and Southern Cook Counties. In Indiana, Lake IN,
Porter and Jasper Counties.

* WHEN...From late Wednesday morning through Thursday evening.

* IMPACTS...Extreme heat and humidity will significantly
increase the potential for heat related illnesses,
particularly for those working or participating in outdoor
activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a DANGEROUS SITUATION in
which heat illnesses are possible. Drink plenty of fluids, stay in
an air-conditioned room, stay out of the sun, and check up on
relatives and neighbors.

&&


https://wxn.io/3emsb
Posted by at

Sunday, August 20, 2023

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 210135
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
835 PM CDT Sun Aug 20 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
835 PM CDT Sun Aug 20 2023 /935 PM EDT Sun Aug 20 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Excessive Heat Risk.
Tuesday...
Elevated Excessive Heat Risk.
Wednesday...
Significant Excessive Heat Risk.
Thursday...
Limited Thunderstorm Risk.
Significant Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION...

After a brief respite Monday, oppressive and dangerous heat and
humidity are expected to return Tuesday through Thursday. Peak
afternoon heat indices of 100 to 110 degrees are expected Tuesday
afternoon, especially west of a Rockford to Rensselaer IN line.
Intense, dangerous heat is expected area wide Wednesday and
Thursday with peak afternoon heat indices of 105 to 115 degrees
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/tld37
Posted by at

Heat Advisory Expiration for McHenry Co., IL

WWUS73 KLOT 210041
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
741 PM CDT Sun Aug 20 2023



/O.EXP.KLOT.HT.Y.0002.000000T0000Z-230821T0100Z/
McHenry-DuPage-Southern Cook-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Naperville, Wheaton, Downers Grove, Lombard,
Carol Stream, Calumet City, Oak Forest, Lemont, Orland Park,
and Park Forest
741 PM CDT Sun Aug 20 2023

...HEAT ADVISORY WILL EXPIRE AT 8 PM CDT THIS EVENING...

Conditions have cooled to below advisory criteria for the evening.


https://wxn.io/m5mqq
Posted by at

Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/20

WWUS73 KLOT 202112
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
412 PM CDT Sun Aug 20 2023



/O.CON.KLOT.HT.Y.0002.000000T0000Z-230821T0100Z/
McHenry-DuPage-Southern Cook-
Including the cities of Crystal Lake, Algonquin, McHenry,
Woodstock, Naperville, Wheaton, Downers Grove, Lombard,
Carol Stream, Calumet City, Oak Forest, Lemont, Orland Park,
and Park Forest
412 PM CDT Sun Aug 20 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Heat index values up to 105.

* WHERE...McHenry, DuPage and Southern Cook Counties.

* WHEN...Until 8 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/lb5n5
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 202045
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
345 PM CDT Sun Aug 20 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
345 PM CDT Sun Aug 20 2023 /445 PM EDT Sun Aug 20 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Elevated Excessive Heat Risk.

DISCUSSION...

Heat indices of 100 to 105 degrees are expected through sunset
away from Lake Michigan.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Excessive Heat Risk.
Tuesday...
Elevated Excessive Heat Risk.
Wednesday and Thursday...
Significant Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION...

After a brief respite Monday, oppressive and dangerous heat and
humidity are expected to return Tuesday through Thursday. Peak
afternoon heat indices of 100 to 110 degrees are expected Tuesday
afternoon, especially west of a Rockford to Rensselaer IN line.
Intense, dangerous heat is expected area wide Wednesday and
Thursday with peak afternoon heat indices of 105 to 115 degrees
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/2287r
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 201652
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1152 AM CDT Sun Aug 20 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1152 AM CDT Sun Aug 20 2023 /1252 PM EDT Sun Aug 20 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Elevated Excessive Heat Risk.

DISCUSSION...

Peak heat indices of 100 to 107 degrees are expected this
afternoon across Illinois away from Lake Michigan.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Excessive Heat Risk.
Tuesday through Thursday...
Significant Excessive Heat Risk.

DISCUSSION...

After a brief respite Monday, oppressive and dangerous heat and
humidity are expected to return Tuesday through Thursday. Peak
afternoon heat indices of 100 to 110 degrees are expected each
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/2sqgm
Posted by at

Heat Advisory for McHenry Co., IL until 8:00 PM CDT 8/20

WWUS73 KLOT 201605
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1105 AM CDT Sun Aug 20 2023


/O.CON.KLOT.HT.Y.0002.230820T1800Z-230821T0100Z/
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-
Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Southern Cook-
Northern Will-Southern Will-Eastern Will-
Including the cities of Rockford, Belvidere, Crystal Lake,
Algonquin, McHenry, Woodstock, Rochelle, Oregon, Byron, Dixon,
DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton,
Downers Grove, Lombard, Carol Stream, Ottawa, Streator, La Salle,
Mendota, Marseilles, Oswego, Yorkville, Plano, Morris, Coal City,
Minooka, Kankakee, Bourbonnais, Bradley, Pontiac, Dwight,
Fairbury, Watseka, Gilman, Paxton, Gibson City, Calumet City,
Oak Forest, Lemont, Orland Park, Park Forest, Joliet,
Bolingbrook, Plainfield, Mokena, Channahon, Manhattan,
Wilmington, Crete, Peotone, and Beecher
1105 AM CDT Sun Aug 20 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Peak heat index values of 100 to 107 degrees. Highest
heat indices across interior portions of Illinois.

* WHERE...Portions of central, east central, north central and
northeast Illinois.

* WHEN...Until 8 PM CDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&


https://wxn.io/gyzyi
Posted by at

Hazardous Weather Outlook for McHenry Co., IL

FLUS43 KLOT 200842
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
342 AM CDT Sun Aug 20 2023


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
342 AM CDT Sun Aug 20 2023 /442 AM EDT Sun Aug 20 2023/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Elevated Excessive Heat Risk.

DISCUSSION...

Peak heat indices of 100 to 107 degrees are expected this
afternoon across Illinois away from Lake Michigan.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Excessive Heat Risk.
Tuesday through Thursday...
Significant Excessive Heat Risk.

DISCUSSION...

After a brief respite Monday, oppressive and dangerous heat and
humidity are expected to return Tuesday through Thursday. Peak
afternoon heat indices of 100 to 110 degrees are expected each
afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/ny4kn
Posted by at
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